标题: 求助prep上的一题~! [打印本页] 作者: leelaugh 时间: 2013-6-5 16:07 标题: 求助prep上的一题~! In laboratory rats, a low dose of aspirin usually suffices to block production of thromboxane, which is a substance that promotes blood clotting, but not seriously interfering with the production of prostacyclin, which prevents clotting.
(A) which is a substance that promotes blood clotting, but not seriously interfering
(B) a substance that promotes blood clotting, but not seriously interfering
(C) a substance that promotes blood clotting, but does not seriously interfere
(D) which is a substance to promote blood clotting, but does not seriously interfere
(E) which is a substance that promotes blood clotting, but not a serious interf18erence
选D的话会不会同which prevents clotting更加平行一点???
作者: enkyklios 时间: 2013-6-5 19:52
D不好but会和 suffices to block production of thromboxane,平行